کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
656933 1458058 2015 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Dependence of fluid flows in an evaporating sessile droplet on the characteristics of the substrate
ترجمه فارسی عنوان
وابستگی جریان های مایع در یک قطره سفت کننده تبخیر بر روی خصوصیات سوبسترا
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی
Temperature distributions and the corresponding vortex structures in an evaporating sessile droplet are obtained by performing detailed numerical calculations. A Marangoni convection induced by thermal conduction in the drop and the substrate is demonstrated to be able to result not only in a single vortex, but also in two or three vortices, depending on the ratio of substrate to fluid thermal conductivities, on the substrate thickness and the contact angle. The “phase diagrams” containing information on the number, orientation and spatial location of the vortices for quasistationary fluid flows are presented and analysed. The results obtained demonstrate that the fluid flow structure in evaporating droplets can be influenced in a controlled manner by selecting substrates with appropriate properties.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 84, May 2015, Pages 419-426
نویسندگان
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